Senco KB4227 COMPRESSION SPRING FOR SFN40 SERIES NAILERS
KB4227 SPRING FOR SFN40 SERIES NAILERS. Compatible with the Following Senco Tools. Senco SCN40DW FRH-(650004N) Air Nailer. Senco SCN40R-(560001) Air Nailer. Senco SCN40R-(560003) Air Nailer. Senco SCN40R-(560004) Air Nailer.